TY  - BOOK
AU  - Horton,Susan
AU  - Thimothy Kin
TI  - Labor productivity
AV  - ERB PAM HC79.L3H67 
PY  - 1981///
CY  - Washington
PB  - The World Bank
KW  - Labour productivity
KW  -  Developing countries
N1  - Bibliography: p. 54-70
ER  -